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Dollo's law

noun
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Dol·​lo's law | \ ˈdä(ˌ)lōz- \

Definition of Dollo's law

: a generalization in biology: characters lost in the course of evolution are never regained in the original form

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History and Etymology for Dollo's law

after Louis Dollo †1931 Belgian paleontologist

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“Dollo's law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Dollo%27s%20law. Accessed 23 Feb. 2020.

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